Thanks for all your answers.
Free currencyconverterapi:
- Rates updated every 30 min
- API key is now required for the free server.
A sample conversion URL is: http://free.currencyconverterapi.com/api/v5/convert?q=EUR_USD&compact=y
For posterity here they are along with other possible answers:
Yahoo finance API Discontinued 2017-11-06###
Discontinued as of 2017-11-06 with message
It has come to our attention that this service is being used in
violation of the Yahoo Terms of Service. As such, the service is being
discontinued. For all future markets and equities data research,
please refer to finance.yahoo.com.
Request: http://finance.yahoo.com/d/quotes.csv?e=.csv&f=sl1d1t1&s=USDINR=X
This CSV was being used by a jQuery plugin called Curry. Curry has since (2017-08-29) moved to use fixer.io instead due to stability issues.
Might be useful if you need more than just a CSV.
- (thanks to Keyo) Yahoo Query Language lets you get a whole bunch of currencies at once in XML or JSON. The data updates by the second (whereas the European Central Bank has day old data), and stops in the weekend. Doesn't require any kind of sign up.
http://query.yahooapis.com/v1/public/yql?q=select * from yahoo.finance.xchange where pair in ("USDEUR", "USDJPY", "USDBGN", "USDCZK", "USDDKK", "USDGBP", "USDHUF", "USDLTL", "USDLVL", "USDPLN", "USDRON", "USDSEK", "USDCHF", "USDNOK", "USDHRK", "USDRUB", "USDTRY", "USDAUD", "USDBRL", "USDCAD", "USDCNY", "USDHKD", "USDIDR", "USDILS", "USDINR", "USDKRW", "USDMXN", "USDMYR", "USDNZD", "USDPHP", "USDSGD", "USDTHB", "USDZAR", "USDISK")&env=store://datatables.org/alltableswithkeys
Here is the YQL query builder, where you can test a query and copy the url: (NO LONGER AVAILABLE)
http://developer.yahoo.com/yql/console/?q=show%20tables&env=store://datatables.org/alltableswithkeys#h=select%20*%20from%20yahoo.finance.xchange%20where%20pair%20in%20%28%22USDMXN%22%2C%20%22USDCHF%22%29
Open Source Exchange Rates API
Free for personal use (1000 hits per month)
Changing "base" (from "USD") is not allowed in Free account
Requires registration.
Request: http://openexchangerates.org/latest.json
Response:
<!-- language: lang-js -->
{
"disclaimer": "This data is collected from various providers ...",
"license": "all code open-source under GPL v3 ...",
"timestamp": 1323115901,
"base": "USD",
"rates": {
"AED": 3.66999725,
"ALL": 102.09382091,
"ANG": 1.78992886,
// 115 more currency rates here ...
}
}
currencylayer API
Free Plan for 250 monthly hits
Changing "source" (from "USD") is not allowed in Free account
Requires registration.
Documentation: currencylayer.com/documentation
JSON Response:
<!-- language: lang-js -->
{
[...]
"timestamp": 1436284516,
"source": "USD",
"quotes": {
"USDAUD": 1.345352401,
"USDCAD": 1.27373397,
"USDCHF": 0.947845302,
"USDEUR": 0.91313905,
"USDGBP": 0.647603397,
// 168 world currencies
}
}
CurrencyFreaks API
Free Plan (1000 hits per month)
Changing 'Base' (From 'USD') is not allowed in free account
Requires registration
Data updated every 60 sec.
179 currencies worldwide including currencies, metals, and cryptocurrencies
Support (Even on the free plan) Shell,Node.js, Java, Python, PHP, Ruby, JS, C#, C, Go, Swift.
Documentation: https://currencyfreaks.com/documentation.html
Endpoint:
$ curl 'https://api.currencyfreaks.com/latest?apikey=YOUR_APIKEY'
JSON Response:
{
"date": "2020-10-08 12:29:00+00",
"base": "USD",
"rates": {
"FJD": "2.139",
"MXN": "21.36942",
"STD": "21031.906016",
"LVL": "0.656261",
"SCR": "18.106031",
"CDF": "1962.53482",
"BBD": "2.0",
"GTQ": "7.783265",
"CLP": "793.0",
"HNL": "24.625383",
"UGX": "3704.50271",
"ZAR": "16.577611",
"TND": "2.762",
"CUC": "1.000396",
"BSD": "1.0",
"SLL": "9809.999914",
"SDG": 55.325,
"IQD": "1194.293591",
.
.
.
[179 currencies]
}
}
Fixer.io API (European Central Bank data)
Free Plan for 1,000 monthly hits
Changing "source" (from "USD") is not allowed in Free account
Requires registration.
This API endpoint is deprecated and will stop working on June 1st, 2018. For more information please visit: https://github.com/fixerAPI/fixer#readme)
Website : http://fixer.io/
Example request :
[http://api.fixer.io/latest?base=USD][7]
Only collects one value per each day
European Central Bank Feed
Docs:
http://www.ecb.int/stats/exchange/eurofxref/html/index.en.html#dev
Request: http://www.ecb.int/stats/eurofxref/eurofxref-daily.xml
XML Response:
<!-- language: lang-xml -->
<Cube>
<Cube time="2015-07-07">
<Cube currency="USD" rate="1.0931"/>
<Cube currency="JPY" rate="133.88"/>
<Cube currency="BGN" rate="1.9558"/>
<Cube currency="CZK" rate="27.100"/>
</Cube>
exchangeratesapi.io
According to the website:
Exchange rates API is a free service for current and historical foreign exchange rates published by the European Central Bank
This service is compatible with fixer.io and is really easy to use:
no API key needed - UPDATE: API key is now needed, free tier is 250 requests/mo.
For example (this uses CURL, but you can use your favorite requesting tool):
> curl https://api.exchangeratesapi.io/latest?base=GBP&symbols=USD&apikey=YOUR_KEY
{"base":"GBP","rates":{"USD":1.264494191},"date":"2019-05-29"}
CurrencyApi.net
Free Plan for 1250 monthly hits
150 Crypto and physical currencies - live updates
Base currency is set as USD on free account
Requires registration.
Documentation: currencyapi.net/documentation
JSON Response:
{
"valid": true,
"updated": 1567957373,
"base": "USD",
"rates": {
"AED": 3.673042,
"AFN": 77.529504,
"ALL": 109.410403,
// 165 currencies + some cryptos
}
}
Currency from LabStack
Website: https://labstack.com/currency
Documentation: https://labstack.com/docs/api/currency/convert
Pricing: https://labstack.com/pricing
Request: https://currency.labstack.com/api/v1/convert/1/USD/INR
Response:
```js
{
"time": "2019-10-09T21:15:00Z",
"amount": 71.1488
}
```
1: http://query.yahooapis.com/v1/public/yql?q=select * from yahoo.finance.xchange where pair in ("USDEUR", "USDJPY", "USDBGN", "USDCZK", "USDDKK", "USDGBP", "USDHUF", "USDLTL", "USDLVL", "USDPLN", "USDRON", "USDSEK", "USDCHF", "USDNOK", "USDHRK", "USDRUB&
